Water injection systems fluid nature

This pump is the same in principle as the piston type but differs in that the gland is at one end of the cylinder making its replacement easier than with the standard piston type. The sealing of piston and ram pumps has been much improved but, because of the nature of the fluids frequently used, care in selecting and maintaining the seal is very important. The piston or ram pump may be used for injections of small quantities of inhibitors to polymerisation units or of corrosion inhibitors to high pressure systems, and also for boiler feed water applications. 

Hydrospheric Applications. Most applications of stable activable tracers have been to trace pollutant movement in water systems. In one example of such an application, Loveland (17) used DTPA anionic complexes of the rare earth elements to trace the movement of fluid-bound pollutants in fresh waters. Figure 3 shows a comparison of the dispersal pattern of a Dy tracer injected into a municipal sewage outfall and the dispersal pattern of Zn, a naturally occurring trace element in... 

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